gactions deploy alpha does not deploy to alpha channel

[jstorhol]

I noticed that sometime mid March 2022 'gactions deploy alpha' no longer deploys to alpha channel. If I recall correctly, this worked as expected in late February.

To reproduce

• npm install @assistant/gactions
• gactions init hello-world
• From the Actions on Google Console, create new blank project
• Edit settings.yaml
• gactions push, then fix any warnings
• gactions deploy preview

All ok so far, project can be tested in Actions on Google Console simulator, but when doing

gactions deploy alpha
Deploying files in the project "<PROJECT-ID>" to the "actions.channels.Alpha" release channel...
Sending configuration files...
Sending resources...
Waiting for server to respond...
✔ Done. Version X has been successfully created and submitted for deployment to actions.channels.Alpha channel.

This will result in a new version named 'alpha' but channel 'Not specified' in Actions on Google Console -> Deploy -> Releases

Expected result: Actions on Google Console -> Deploy -> Releases to show a new version X in channel Alpha